Next stop, same thing. Each new passenger paid their fare then got a lollipop.

People smiled. That glazed commuter stare gave way to something else. Midway through the trip, the driver was up again, passing out the candy and explaining his philosophy.

"I'm Bobby. I'm almost 50 years old and I refuse to be miserable," he said to passengers behind me: 'You should smile when you greet the people.' They call me Mr. Wonderful. But Bobby will suffice."

More lollipops. Then Bobby Diggins went back to his seat. As driver of the subway's second car, he didn't have the responsibility for driving.

Mr. Diggins has been working for the Massachusetts Bay Transit Authority since 2002, spreading his upbeat message. Ask him his name and he hands out a little handwritten note with his name, badge number, and the MBTA area where he works.

It's not often that workers in a highly visible position go out of their way to make people happy. When they do, it makes an impression. They deserve a little public appreciation.